Kyle D 
A 2021 Ford Bronco was recently put up on the dyno by Late Model Restoration(LMR), and the results are surprising. The model that LMR tested was the Big Bend trim with the Sasquatch package, packing 35-inch tires and 4.70 rear gearing being turned by the 2.3L EcoBoost and 10R60 10-speed automatic. The truck was tested in 7th gear as it provided the 1:1 final drive ratio and was bone stock except for 93 octane fuel in the tank.
2021 Ford Bronco Sasquatch Dyno Test
According to Ford, the 2.3L EcoBoost and 10-speed together make 270 horsepower and 315 lb-ft of torque to the crankshaft on regular 87 octane fuel, with small gains with higher octane according to the official spec sheet. But what does that power translate to when it comes to putting it to the ground?
For a 2021 Ford Bronco EcoBoost with the Sasquatch Package, LMR saw the new SUV 225 horsepower at 4,800 rpm, and 303 lb-ft of torque at 3,400 rpm, respectively. That amounts to a drivetrain loss of roughly 17 percent, which is pretty good! Additionally, Bronco has an integrated governor set to 95 mph, which is likely due to the speed rating of the tires.
Old Ford Bronco Versus New
As luck would have it, LMR recently dyno tested a 1996 Ford Bronco with the 351 Windsor V8, which sent 165 HP and 259 lb-ft of torque to the wheels, representing a 20 percent drivetrain loss form the 205 hp and 328 lb-ft to the crank that Ford advertised in 1996. But compare both figures to the numbers the ‘21 Bronco put out, and it’s very close competition.
And considering the 2.3L EcoBoost is roughly 60% smaller than the massive 5.8L pushrod V8 of yore, those numbers are even more impressive.
There’s no doubt that the 2021 Ford Bronco is far more sophisticated than the F-150-based Bronco of nearly 30 years ago, but the curb appeal of the retro SUV continues to improve with age.
